I've had this on my mind for a while. But here is the full summary.

All rights to characters (except Carter) belong to Ally Carter!

What if Cammie Morgan had a twin brother named Carter? Once they attended spy school they were separated and forbidden to tell anyone about their sibling. They spent their summers and holidays with each other but had minimal contact throughout the year. This changes when the Blackthorne Boys are sent to tail the Gallagher Girls and the siblings are reunited. Then on top of that, they would be spending the school year together. It's going to be a year full of friendship, love and a battle of the sexes.

Chapter One: The Discovery

Carter POV

Classes at Blackthorne were about to start tomorrow so I was just in my room with my roommates Zach, Grant, and Jonas. Let me explain, I attend a school that trains boys to become assassins. But I am also a CIA legacy, my parents were Rachel and Matthew Morgan. My father disappeared a long time ago and my sister and I were devastated and within a few years, we were sent to different schools. While I am training to become an assassin she trains to be a spy at the Gallagher Academy. Of course my sister and I as well as the staff know about the schools, the students don't. So no one knows I have a twin sister and both of our files were wiped on all databases and all that is there are our code names. My sister is the Chameleon, she got our mothers beauty not that she sees that and my dad's pavement artist skills. Whereas I got dad's looks and skills as a fighter. We both inherited our mother's caring heart, which is why we sneak phone calls to each other as much as possible. We had a phone that each of us only had our family on and even then we have fake names for each other so if anyone does find them, they will assume it's a cousin.

"I can't believe we are already back here! I was so happy to just go to the beach and have girls drool over me all summer!" Grant whined as he lied back on his bed.

"Dude, you need to focus on becoming a better assassin, not worrying about what girl you will hook up with next," I replied while rolling my eyes.

"Ya seriously Grant we have a job to do, even if we are only training." Zach agreed with me after the fact.

"But even then we are men! We have desires and my desire is to have a hot girl on my arm!" Grant said jumping up.

"Okay dude, whatever." Jonas finally piped in. Just then my phone buzzed and all three of them looked at me wondering who messaged me.

Call me Carts~Sadie

Sadie was Cammie's name in my phone so no one got suspicious. We did have a distant cousin named Sadie that we never talked to, but they didn't need to know.

"Hey, I have to take this, I'll be right back," I said as I exited the room with no more to elaborate on. But I knew they would be suspicious.

(AN: Just an FYI Carter/Cammie)

Hey! How are you?

Well, I'm better now. I feel like the summer just went by us so fast.

I know, how is it being back home?

It's my second home, you know but its good too. I miss you.

I know, I miss you too. But it'll be another four months until I can see you.

Yeah, yeah, yeah, I know. I just wish I could see you so I could kick your ass again.

HA! SO that's what this call is about? I will be training harder than ever now you know.

Oh, I know. But I'll be ready for you.

Alrighty, well we will see about that!

I should go, the girls are wondering where I am.

Yeah same, but I mean still different. Bye.

Bye.

Our conversations were always short and sweet. We really bonded over the summer, we've gotten closer and closer as we started training together. I smiled a sad smile because darn it I missed my sister and we've only been apart 2 weeks.

I walked into the room and all my roommates had raised eyebrows at me.

"So who do you miss?" Grant asked as he wagged his eyes suggestively. Disgusting, I can't even think about that.

"No one, I was just talking to my cousin," I replied simply.

"HA! You are the worst liar, it was a girl.." Zach piped in and I glared at him, he wasn't completely wrong but I didn't want them to know about my sister so.

"Alright fine, I met a girl over the summer and it's nice having a normal girl in your life, ya know?" I said as I smiled at the thought of having a girlfriend one day if Cammie would ever introduce her to any of her friends….

"Nice dude! You get some?" Grant asked again, with the idiotic questions. But all I did in response was a smirk and we all high fived.

"I think we should all go to bed, the first day of classes is tomorrow," Jonas said, he is the tech wiz in our group and we all nodded and went to sleep.

Cammie POV

I got off the phone with my brother and was smiling. I really did miss him, he is my twin and he knows me better than I know myself. He always referred to the Gallagher Academy as my home, but really it would only be my home with him here. And he's not. I told the girls I was going to go talk to my mom so I called him on my way while walking to her office. My mother is the headmistress if you didn't figure that out.

As I got closer to the door I heard voices so I stopped and listened.

"So it's settled I will take the girls on the mission tomorrow and have the boys tail them. I hope they can handle the Blackthorne boys." I heard Joseph Solomon say, he was my godfather as well. But, I didn't know he was back. I hadn't seen him since my fathers funeral, he disappeared out of our lives when we needed him most.

"Oh Joe, you know how Cammie handles her brother Carter. I think you should hope the boys can handle the Gallagher Girls." My mom responded.

"Touché, and once the mission is completed the boys will return here and stay the semester. They need to learn to work together." Joseph said and I couldn't listen anymore because all I kept thinking was I'm going to see my brother again. Tomorrow.

What do you think? Please please let me know and review!